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Throttle Body Clean.

Discussion in 'A3/S3 Forum (8L Chassis)' started by nickelvery, May 21, 2007.

  1. Smoke Breather
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    Smoke Breather Member

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    [May 30, 2007]
    Cheers Dave you're a star :icon_thumright:
    #41
  2. garratt83
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    garratt83 Member

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  3. Smoke Breather
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    Smoke Breather Member

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    [May 30, 2007]
    Cheers, off to get some today, but more importantly I want to now know why there is pictures of my wife on the internet! ;)

    (I was gonna make some reference to your girlfriend/wife/mum but I'm new here so I've restrained myself. Nice link though might save that picture for future use. :icon_thumright: )
    #43
  4. Caesium
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    Caesium My BM is fixed!

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    [May 30, 2007]
    I can't believe that you lt didn't know what Isopropyl Alcohol was FFS!

    I always get mine from CPC, Maplins seem to be dearer.
    Failing that use meths to clean off the gunk, you can soak parts in meths but if you try and soak in IPA it will evaporate really fast, making it a bit difficult.

    Make sure you don't get your IPA's confused.
    [​IMG]
    #44
  5. cjhill
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    cjhill hmmmmm interesting.

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    [May 30, 2007]
    the stuff from halfords marked... electrical contact cleaner (in a green can) is the same stuff.

    Or at least it smells like the same stuff and hasnt killed my MAF yet. We use alot of isopropyl alcohol at work (in hospital) as a disinfectant, it has a distinctive smell.
    #45
  6. Caesium
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    Caesium My BM is fixed!

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    [May 30, 2007]
    Solvent abuse?
    [​IMG]
    #46
  7. NISHS3
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    NISHS3 New Member

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    [May 31, 2007]
    I just did mine today! After taking ages trying to figure out how to get that sodding plug that connects to the throttle body of without breaking it :think: .
    Mines done 70k so it was a hell of a lot more responsive afterwards especially from 2-5,000 revs noticeable difference. It doesn't idle erratically anymore either and has a smoother pickup. There was loads of gunk around there though and a big ring of gunk around where the flappy thing rests.

    Thanks a lot for this :s3addict:.
    #47
  8. campbell
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    campbell Member

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    [May 31, 2007]
    did mine at weekend and the ECU has set all its parameters and the cars idles better and is more responsive down in the rev range

    worth doing!
    #48
  9. Dave_Bayern
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    Dave_Bayern Slipping at 3.5Krpm

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    [May 31, 2007]
    I did mine and the MAF and I went from 27mpg average to 32mpg average.

    Thats enough of a reason in itself to do it...
    #49
  10. a3daveo
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    a3daveo Member

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    [May 31, 2007]
    At the risk of sounding a complete idiot what gasket do I ask for? Throttle body gasket??!!

    Whilst I whip off the throttle body may as well replace the gasket as I wouldnt think it cost much
    #50
  11. Defratos
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    Defratos You’re Dethpicable!!

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    [Jun 8, 2007]
    Any feedback on where to get a new gasket from?
    #51
  12. MANDELA
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    MANDELA New Member

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    [Jun 8, 2007]
    As long as you are careful when cleaning it through the gasket should be fine to keep on. Just be careful to keep all cleaning fluid/water inside the throttle body and watch for the electrical connector on one end. I did'nt have a 5 stsr security torx for the maf so I just dismantled part of the intake box and cleaned it through that with loads of isopropyl...worked a treat.
    #52
  13. Ballcrusher
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    Ballcrusher NO CAT JUST 3" STRAIT THREW

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    [Jun 9, 2007]
    would it make diffrence if ya had your ca liver mapped........?
    #53
  14. Utrinque-Paratus
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    Utrinque-Paratus Member

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    [Jun 9, 2007]
    You can do it by disconnecting your battery before and then carry out,
    BT clean once every thing is complete connect battery turn to 1st setting on ignition and you should hear an audible whirring sound which should last for approx 20 seconds it will then go off, that's the BT aligning itself then start engine up, i did it today went a treat, cleaned it with carb cleaner and cotton wool buds, + lint free cloth here is a link however just use battery disconnect in place of vag com, hope this helps m8 good luck.

    http://uk-mkivs.net/forums/thread/222737.aspx
    #54
  15. Utrinque-Paratus
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    Utrinque-Paratus Member

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    [Jun 9, 2007]
    it is the same stuff lol thats what i used.:hubbahubba:
    #55
  16. Jay
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    Jay Member

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    [Jun 21, 2007]
    Is it essential to get the torque setting correct when tightning the bolts or can you just tighten as much as it allows.

    What do you do if you dont have a torque wrench?
    #56
  17. Effect
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    Effect Member

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    [Jun 21, 2007]
    My car had done 92k when i took mine off to clean and it was spotless.
    #57
  18. mattyboy199
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    mattyboy199 Active Member

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    [Jun 22, 2007]
    How long does it take to reset ?
    #58
  19. theitalian3
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    theitalian3 Member

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    [Jun 22, 2007]
    probably been done before you bought it

    im gonna do mine this weekend, done it on a few other cars before but not my own baby so ill have to be careful this time lol

    :blackrs4:
    #59
  20. mattyboy199
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    mattyboy199 Active Member

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    [Jun 23, 2007]
    I did have a bit of idle play & i have done all mentioned in the above dont think its as bad as it was well worth doing. Does the 1.8T engine have an idle control valve this usually plays a part in unconsistant idleing any info would be good.

    Matt
    #60
  21. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Jul 25, 2007]
    i have just cleaned the throttle body as it was very dirty. i did the whole disconnect the battery thing for over 40 mins and then put it all back together. I reconnected the battery and did the first click on the ignition and left it alone for a minute and then started the engine. The engine started fine and then it started to alter the revs up n down above n below it leveled out at 1000rpm. I have now taken the car for a 10min drive and the idle still sits at 1000rpm is this right cos it used to idle at about 850rpm.
    #61
  22. nickelvery
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    nickelvery RS4 B5 380bhp

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    [Jul 25, 2007]
    I have done this on mine now and from what I have learnt, you should only need to leave the battery disconnected for a bout 10 -15mins. Did you make sure the flap in the throtle body returned to the orignal place? Also where you carefull not to **** around with the IAT sensor in just past the flap? Sorry if I'm teaching you to suck eggs.
    #62
  23. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Jul 25, 2007]
    Have done the battery thing and left it off for a good 30 mins. The throttle body flap didnt move at all so it stayed in its original postition througout cleaning. I did not touch the sensor i just cleaned the hole where the small rubber pipe connects.

    The car is less eratic in idle now but its still stays just under 1000rpm when warmed up. it does still fluctuate a little. i will see how it goes on the way to work 2moro.

    Thanks for the advice and no i welcome any useful comments thats what i'm here for!!
    #63
  24. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Jul 26, 2007]
    Just driven to work and its not good, First off the from cold the car would not accelerate smoothly it sort of bunny hopped. After it warmed up a little it did improve but the idle is still staying at 1000rpm and fluctuating a little. The temp gage got to 90 as per usual but then it dropped a little as i was getting close to work. it has not done this before. I am wondering if it might have something to do with the MAF sensor??
    #64
  25. garratt83
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    garratt83 Member

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    [Jul 26, 2007]
    Does sound like a MAF error. Try disconnecting and they driving it home, if it stops doing it there is your answer.

    BTW don't do it for to long as I've heard that it get the car all upset.
    #65
  26. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Jul 26, 2007]
    Will go give the MAF a quick clean later to see if that helps as i could not do it yesterday as i did not have a torque bit to undo it. Will also try unplugging it later on my way home to see if that solves it. Have already found that GSF have a replacement just incase for £69.50+VAT.

    Cheers for the advice
    #66
  27. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Jul 26, 2007]
    Quick update, just went out and removed the MAF and gave it a quick clean not sure if it has fixed the prob or not but it was idling at about 900rpm but still not steady. I tried removing the MAF connector to see if this made it any better but the rpm's dropped dramatically like the car was about to stall and then kept rising n falling. I reconnected the MAF and it went back to the 900rpm again but its still not the same steady idle as i had before. Still got the drive home to see if the clean has helped though, any other ideas people??
    #67
  28. garratt83
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    garratt83 Member

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    [Jul 26, 2007]
    You could try resetting it again. Disconnect the battery and see if it fixes it. Mine ide's at 950 which before it was at 1000. Also response is better.
    #68
  29. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Jul 26, 2007]
    Will drive it home and then try the whole reset thingy again. Might also try doing the reset of the throttle too as thats easy enough turn on the ignition lights press pedal down for 5 secs and then let it go and start the engine.
    Very much hope i can fix this as it was all ok till i cleaned the throttle body, Damn it i was only trying to be nice to my S3!!!
    #69
  30. mattyboy199
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    mattyboy199 Active Member

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    [Jul 26, 2007]
    I ll mention it again idle control valve ?
    #70
  31. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Jul 26, 2007]
    Got home and have tried resetting the ECU again by disconnecting the battery and still got the same prob, if anything its worse now cos the car is idling above 1000rpm. Gonna take it to the garage 2moro morning and see if they can discover whats wrong.
    #71
  32. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Jul 27, 2007]
    Been to Abtech this morning and they have stuck it on VagCom and it has come back saying that the MAF is reading as low and so is the temp sensor so i am gonna replace them and fingers crossed get this issue solved.

    I think my S3 hates me :blownose:
    #72
  33. nickelvery
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    nickelvery RS4 B5 380bhp

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    [Jul 27, 2007]
    IMO that's why it's so good to have the old VAGcom! :icon_thumright:
    #73
  34. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Jul 27, 2007]
    Very much concidering getting vagcom now!! are the cheap ebay cables any good?? if not where is best to get one from and how much do they cost?? i know you can get the software free from Ross tech.
    #74
  35. nickelvery
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    nickelvery RS4 B5 380bhp

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  36. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Jul 27, 2007]
    Sweet!

    Looks good did you get the software from Ross tech?? if so is that where you get it activated for £50??
    #76
  37. nickelvery
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    nickelvery RS4 B5 380bhp

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    [Jul 27, 2007]
    http://www.ross-tech.com/vag-com/download/

    Link above is for the download.

    I think I emailed them about getting the liecence.

    Hope this helps.
    #77
  38. vrbob
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    vrbob Thats no Moon, Thats a space station!

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    [Jul 27, 2007]
    next stupid question :

    is it easy to use vagcom?? and is there any chance of me doing anything bad to the car with it?? I do have a tendancy to make things worse look (eg tried to clean throttle body and now have faulty MAF and Temp sensor!)

    Also is the cable you posted the link to the one you use with the free 409.1 version of the software?? did you pay £50 to unlock features in that version of the software or have you got the 704 software if so does that work with the same cable??
    #78
  39. nickelvery
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    nickelvery RS4 B5 380bhp

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    [Jul 27, 2007]
    I have 409.1 which unlocks for £50.

    Use this link it tells you everything you need to know.

    http://www.ross-tech.com/vag-com/tour/main_screen.html
    #79
  40. MikeA3
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    MikeA3 Active Member VCDS Map User

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    [Jul 29, 2007]
    Just cleaned my TB yesterday - fairly simple job even for a mechanical novice like me

    mine was absolutely filthy inside, a ring of black deposit around the flap about 1cm wide - cleaned up ok with the isopropanol (spelling) though and it seems to be running a lot smoother now.
    #80

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